Valve-grinder.



C. F. HESS.

VALVE GRINDER.

APPLICA TION FILED JUNE 22. 1914.

Patented. Oct. 5, 1915.

llblll'll pj Specification. of Latte-is 1 NCU-Et I'll lLEXfillIDEENELSON, OF

Application filed June 2.9., 192 12. Serial li o. l 'ifi ii e.

To (ZZZ whom 2'5 may concern.-

Be it known that I, CHRISTIAN F. Hues, a citizen of the United States ofAmerica, and resident of Chicago, Cook county, llllinois, have inventeda certain new and useful Improvement in V alve-Grinders, of which thefollowing-is a specification.

My invention relates to devices for grinding the valves for internalcombustion engines. This, it will be understood, is usu- 1 allyaccomplished by rotating the valve "back and forth on its seat until thelatter and the surfaceof the valve have been made smooth. In this way,and after an engine valve has become Worn or impaired by use, it can berepaired and restored to such a condition that it will not leak. Deviceshave been proposed and used for grinding a valve in this way. So far asI am aware, howwhich latter is also shown I prises a two-prong tool Ahaving handle C, which latter is ever, these devices have not beenaltogether satisfactory. I

The Ob]e0i3'0f .my invention is, therefore,

to provide a novel andinexpensive valve grinder which can be easily andconveni- 'ently operated to rotate the valve on its seat and which canbe employed in situations or places heretofore more or less iraccessible to other devices, as will herein after more fully appear.

To these and other useful ends my invention. consists in mattershereinafter set forth and claimed.

In the accompanying draWingsFigure l is aperspective of a valvegrinderembodying the principles of my invention, showing the same inposition to engage the valve,

' in perspective directly below. Fig. .2 is a side elevation of thevalvegrinder, showing certain portions thereof in vertical section.

As thus illustrated, my invention com- 7 its prongs 0 adapted to enterthe openings in the top of the valveB, these openings 5 being disposedin suitable position for this purpose. The said tool has a shank or stemo provided at its upper end with a swivel hand grip or adapted to fitthe palm of the hand, and is similar to'the han dle of anordinarycarpentefis brace and bit.

" Thislhandle is provided on its under surface with a plate c which hasa swivel connection 0 with the upper end of the stem or shank a and isheldin place by screws 0", whereby the said handl'may remain stationaryin discomfort With certain other devices.

one hand While the tool is beingrotated back and forth by the otherhand. The means for producing this back and forth rotation, in order toturn the valve B back and forth. on its seat, comprises a laterallyprojecting arm a? which is rigid with the said tool ligand which has anupturned outer end portion a, this upturned end portion preferablyterminating short of the plane of. the underside of the handle C, asshown more clearly in Fig. 2. The ban dle D is provided with adownturned end portion having a ball (Z which engages a socket-o; in theupper end of the portion (4 whereby the saidhandle can be swungup ordown or sidewise relative to the tool. The edge portions a of the saidsocket are bent or inward a little to hold the ball d in place. v

The mode of operation is as 'fOllOWSI*-Tl13 handle C is grasped by theuser in one hand, and the prongs a are then inserted in the openings ofthe valve. The other handle D is then grasped by theother hand. and bymeans of this handle the tool A. is then rotated longitudinally of thestem a-that is to say. about an axis extending centrally of the handle Cand the said valve. This, it will be seen, is accomplished by moving thehandle D back and forth in a manner to swing the arm 1. from one side tothe other. During this time, the handle D may be held at the mostconvenient angle, and is not necessarily held in a plane parallel withthe plane of the arm a for the reason that the ball and socket jointpermits perfect freedom of manipulation of the handle l) in any suitableor desired manner. In this way, and by reason. of the provision of thehandle D and the ball and socket connection thereof: the valve myinvention can be used in places ahd situations which have heretoforebeen more or less inaccessible to the other devices which v wereemployed for this purpose. I

With my iingiiroved construction the operation of twisting the valvebaclrand forth is comparatively easy, and is accomplished with greaterconvenience and less physical than was heretofore possible The stem aserves a stop to limit the swing of the handle in either direction in aat rightangles to the axis/of the tool. 4 Also, it will be seen, thehandle is movable a any suitable manner.

to a limited extent out of said plane, and has some rocking motion aboutan axis extending lengthwise thereof. The edge of the socket can beformed to keep the handle from dropping down to a greater extent than isshown in dotted lines inFig. 2, At the same time sufficient flexibilityis alforded between the handle and arm to insure convenient operation ofthe tool under cramped or awkward conditions.

It will be seen that the construction is very simple and inexpensive incharacter. A short section of round rod is bent into shape to providethe portions (2 a and a and the ends of this U-shaped member are thensuitably formed to receive the handle and 'grip. The tool A is connectedwith the corner of elbow of said U-shaped member in The said handle Dhas its proximal end attached to the distal end of the rod or arm.- Withthis construction and arrangement of the parts the device is, moreover,easily operated in various places and under conditions which precludethe use of certain other devices for this pur ose.

What I claim as my invention is 1. A valve grinder comprising a tool forengaging the valve, a stem for said tool, a hand grip swiveled on theend of said stem, an arm extending laterally from between the tool andsaid hand grip, said arm having its distal end bent toward the plane ofsaid grip, said tool being rigid with, the elbow formed by said stem andarm, and a handle for operating said tool, movably connected at one endthereof to the distal end of said arm, having its outer end free,thereby adapted to swing around and assume differ ent angles relative tosaid arm.

2. A valve grinder comprising a tool for engaging the valve, a stem forsaid tool, a hand grip swiveled on the end of said stem, an armextending'laterally frombetween the tool and said hand grip, and ahandle for operating said tool, movahly connected at one end thereof tosaid arm, havingits outer end free, thereby adapted to swing around andassume different angles relative to said arm, the connection betweensaid handle and arm permitting said handle to swing about an axisparallel with the said stem, and also about another axis extending atright angles to said stem, the one axis e.\'- tending. at an angle totheother.

3. A valve grinder comprising a tool for engaging the valve, a stem forsaid tool, a hand grip swiveled on the end of said stem, anarmexten'ding laterally from between the tool and said hand grip, and ahandle for operating said tool, movably connected at one end thereof tosaid arm, having its outer end free, thereby adapted to swing differentangles relative connection between the to oscillate said todl directlythereto, a hand grip swivel'ed on the end of said stem, an arm ex:tending laterally from between the tool and said hand grip, integralwith said stem, and a handle for operating said tool, movably connectedat one end thereof to said'arm, having its outer end free, therebyadapted to swing around and assume difierent angles relative to saidarm, said handle being mounted to swing in either direction until itencounters'said stem, and to have a limited freedom of motion out of thegeneral plane Olf such swinging movement, as well as some rocking motionabout an axis extending lengthwise thereof. V

5. A-valve grinder comprising a tool for engaging the valve, a stemforsaid tool, a hand grip swiveled on the end of said stem, an armextending-laterally from between the tool and said hand grip, and ahandle for operating said tool, movably connected at one end thereof tosaid arm, having its outer end free, thereby adapted to swing around ahandle for operating saidtool, movably connected at one end thereof tothe dlstal.

end of said arm, having its outer end free, thereby adapted 0 swingaround and assume different angles relative to said arin, said stemserving as a stop for said handle.

7. A valve grinder comprising a rod bent into the desired shape, a toolon the rod, a

grip swiveled on one end of the rod, and a handle of suitable lengthhaving its proxlconnected to the other mal end swingingly handle beingoperable end of said rod, said dent with the swivel, of saidgrip.

8. A valve grinder comprising a rod bent into the desired shape, a toolon the rod, a,

about an axis coincigrip swiveled on one end of the rod,'and a liandleof suitable length having its proxi- Ina-l end swingingly connected tothe other end of said rod, said handle being operable to oscillate saidtool about an axis coincident with the swivel of saidgrip, and said rodbeing U-shaped with the lower portion thereof extending laterally ofsaid axis.

9. A valve grinder comprising a rod bent into the desired shape, a toolon the rod, a

grip swiveled on one end of the rod, and a handle of suitable lengthhaving its proximal end swingingly connected to the other end of saidrod, said handle being operable to oscillate said tool about an axiscoincident with the swiyel of said grip, said handle connectionincluding an elbow shaped portion having a ball and socket engagementwith the rod.

10 10. A valve grinder comprising a rod bent into the desired shape, atool on the rod, a

mal end swingingly connected to the other thereof extending laterally ofsaid axis, the

sides of said rod being of unequal height,

and the shorter side being connected at its upper end with said handle.

Signed by me at Chicago, Cook county, Illinois, this 8th day of June1914.

CHRISTIAN F. HESS. Witnesses:

RACHEL J. RICHARDSON, Rose E. 'SEHNEM.

